Ford C-Max 11ke...injectors?

raspberrypi67

Hi Folks,

well I'll get to the point, ...my wifes car decided to go into 'limp mode' for some reason last week. Ford C-Max 1.6 diesel model.
well eventualy all the garage could do was reset the codes and do test drives ( wouldent go over the 40km hour mark , initially the warning light would take about 10 minutes to go on ) .
Seems could be one of the injectors...

Anyone have any experience in changing these themselves ? I used to do a lot of Car servicing, not so much now, thought id see how difficult it may be??

Cheers Folks

Kencollins

I removed the injectors in my 1.6HDI without any special tools to change the seals, so it is possible!

CAREFULLY remove the plastic return hoses from all of the injectors and bend it out of the way, you do not want to ruin your day by breaking one of them!!

Remove the silver HP fuel line with a spanner.

Slacken the two 7MM hex nuts that clamp the injector in and remove them.

If the injector is clean and free of carbon it should now pry out. Be careful that you pry against, the aluminium engine block is very soft.

If the injector is giving a bit of resistance, then you can CAREFULLY use the stud bolts to ease it out. Use a small female torx bit to evenly loosen the two studs that go down into the block. Go very slowly, and if it looks like the bolts are twisting STOP. They have a reputation for shearing off and ruining your day, like the fuel return hoses!

I would definitely replace the copper washer (you can use a tool to get it out of the injector hole if it is stuck, my favorite is a big pozi screwdriver and a hammer)

I would also definitely replace the two studs that are used to hold down the injector. They are torque-to-yield bolts and do not respond well to being reused. Make SURE to torque them properly, I cant remember the exact spec but it is something like 12NM, then the nuts on top go to 12NM plus 60 degrees.

Then reverse the removal procedure, job done!

PS, you will need to code the new injector with a delphi tool or the ford equivalent

raspberrypi67

Thanks a mill for that, only items i wouldent have are a torque wrench, have to get one and the female torx....
sounds fairly straightforward,

Are the injectors particularly expensive ?

Cheers

R

Kencollins wrote: »

I removed the injectors in my 1.6HDI without any special tools to change the seals, so it is possible!

CAREFULLY remove the plastic return hoses from all of the injectors and bend it out of the way, you do not want to ruin your day by breaking one of them!!

Remove the silver HP fuel line with a spanner.

Slacken the two 7MM hex nuts that clamp the injector in and remove them.

If the injector is clean and free of carbon it should now pry out. Be careful that you pry against, the aluminium engine block is very soft.

If the injector is giving a bit of resistance, then you can CAREFULLY use the stud bolts to ease it out. Use a small female torx bit to evenly loosen the two studs that go down into the block. Go very slowly, and if it looks like the bolts are twisting STOP. They have a reputation for shearing off and ruining your day, like the fuel return hoses!

I would definitely replace the copper washer (you can use a tool to get it out of the injector hole if it is stuck, my favorite is a big pozi screwdriver and a hammer)

I would also definitely replace the two studs that are used to hold down the injector. They are torque-to-yield bolts and do not respond well to being reused. Make SURE to torque them properly, I cant remember the exact spec but it is something like 12NM, then the nuts on top go to 12NM plus 60 degrees.

Then reverse the removal procedure, job done!

PS, you will need to code the new injector with a delphi tool or the ford equivalent

PukkaStukka

How do you know which injector is faulty?

raspberrypi67

Hmmm, well thats what i wonder too. The garage keeps getting the same error code, apparently . I'm sure there are ways but to be honest if it wasent going to cost me 400 per injector i'd say change the lot.
I'll do the other 3 if the one doesent work...

PukkaStukka wrote: »

How do you know which injector is faulty?

PukkaStukka

raspberrypi67 wrote: »

Hmmm, well thats what i wonder too. The garage keeps getting the same error code, apparently . I'm sure there are ways but to be honest if it wasent going to cost me 400 per injector i'd say change the lot.
I'll do the other 3 if the one doesent work...

This is the reason I posed the question: it's a lot of money and effort to throw speculatively at a problem, especially if there isn't absolute certainty that a particular injector is definetly at fault.

Sometimes particular injectors don't flag a fault code. There might be clues in the live data if the correction factors show one injector is miles off its calibration. A leak-off test of all injectors may also show one injector behaving differently.

What I would suggestvis if you are going the DIY route is to

1: replace the diesel filter with a genuine one. Sometimes a partially clogged filter can cause the weirdest faults imaginable. You can Break open the old filter after removal and make sure there is no contamination or swarf in it. If a new filter doesn't provide a cure then

2: Get the injector(s) professionally tested in a diesel specialist before condemning any of them.

PukkaStukka

Plus shop around for injectors. I reckon you may get cheaper than €400 - especially if that is a figure quoted by a dealer

EPAndlee

Had one of these in about 2 weeks ago with injector problems. Sent it to a specialist instead of us ripping at it. The bill ended up been fairly expensive

mullingar

Max speed only 40kmh?

What is the max rev in neutral?

What was the error code number?

yknaa

Just got one replaced by a main dealer. The maid dealer's diagnostics identified one injector while the mechanic who towed the car suggested it was another one instead. Is it that hard to identify the problem I wonder? I would like to be sure the problem is solved seen as it is so expensive to replace.

cournioni

I take it these are the Siemens VDO type. New they’re €246 from diesel specialists, I’d imagine main dealers are quite expensive.

Edit, if Bosch they’ll certainly be repairable, new will probably be in or around the same price as the VDO.